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http://hdl.handle.net/123456789/947
Title: | Two-step spent active carbon regeneration by treatment with sodium hydroxide soln. and then washing with sodium metabisulphite soln. | Authors: | Cruceru, Mihail Nicolau, Margareta |
Keywords: | Active carbon;Regeneration | Issue Date: | 30-May-1986 | Abstract: | In the 1 st step the spent C is treated successively with NaOH solns. having decreasing concns., respectively of 15-, 10-, 5-, 2.25-, 1 and 0.5%, at 70 deg. C, for 2 hrs. for each treatment. In a 2nd step, the C is washed with 0.05% Na metabisulphite soln. at pH 1 .5. Washing is continued with an aq. soln. of 0.001 % Na metabisulphite, until the washing water reaches pH 4.5. |
Description: | Patent Assignee Name(s) and Code(s): COMB CHIMIC DROBETA; INST EPURAREA APELOR |
URI: | http://hdl.handle.net/123456789/947 |
Appears in Collections: | Articles |
Files in This Item:
File | Description | Size | Format | |
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Documentatie RO89593A.pdf | 25.38 kB | Adobe PDF | View/Open | |
RO89593A.pdf | 92.22 kB | Adobe PDF | View/Open |
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